Bututun tukunya a buɗe yake a ƙarshen biyu kuma yana da ramin rami, tsawonsa da kewayen babban ƙarfe, bisa ga hanyoyin samarwa za a iya raba su zuwa bututun ƙarfe mara sumul da bututun ƙarfe mai walda, ƙayyadaddun bututun ƙarfe tare da girma gabaɗaya (kamar diamita ko tsayi) da kauri na bango, ya ce girmansa yana da faɗi sosai, daga ƙaramin diamita na capillary har zuwa mita da yawa a diamita, babban bututun diamita.

Ana iya amfani da bututun ƙarfe don bututun ruwa, kayan aikin zafi, masana'antar injina, binciken ƙasa na man fetur, kwantena, masana'antar sinadarai da kuma dalilai na musamman.

(1) Karfe mai inganci na tsarin carbon 20G, 20MnG, 25MnG.

(2) Tsarin ƙarfe na ƙarfe 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, da sauransu.

An raba bututun boiler zuwa rukuni biyu:GB/T3087-2018bututun tukunyar jirgi na tsakiya da ƙasa mai matsin lamba,GB/T5310-2018bututun tukunya mai matsin lamba. Manyan kayayyakinmu sun haɗa da:

ASTMA210(A10M)-2012Tukunyar ƙarfe mai matsakaicin carbon da bututun ƙarfe mai zafi mara shinge, babban kayan shine SA210 GrA1, SA210GrC;

ASME SA106/SA-106M-2015, manyan kayan sune GR.B gr.C;

ASME/SA SA – 213-213 – m, kayan ƙarfe na gama gari: T11, T12, T22 da T23, T91, P92, T5, T5b, T9, T21, T22, T17;

ASTM A335 / A335M – 2018, manyan kayan sune: P11, P12, P22, P5, P9, P23, P91, P92, P2, da sauransu.